Firearm



C. C. LOOMIS FIREARM Filed May 5 r Q Q Q E R,

enawronn c. oomrs, on ILronnnW YonK, Assrsnon TO REMINGTON ARMS con Patented Oct. 2, 1928.

mew stares rarest f PANY, INC., A CORPORATION or DELAWARE.

FIREARM.

Application filed May ,5,

unfired'cartridges, but also to serve as an i11 dicator that the gun'isin condition for firing.

Suc'h'locking device ordinarily comprises a member which is in the path of movement of a partof-the breech opening and re-loadmg mechanism whenthe gun is cocked and 1S 1 moved out of the path to ineffective position Tby-the firing movement of the hammer, or. seine part associated wlth the'hammer. If the ie-loading mechanism is pressed firmly into contact with this locking member, the

friction between the contacting parts may be 'su-ficient to prevent movement of the locking member and this member in turn may block the movement of the'firing hammer and cause thegun to misfire, or cause a breakage of some part of the'mech'anism. In guns in which the redeem-11 operation isperformed byreciprocation or an action bar associatedwith the iorearm there is a strong tendency for 'the'shooterto draw the action bar into firm engagement with its locking member, 1 since "the-gun is held against the shoulder means of the forearm.

The present invention contemplates the provision of a mechanism whereby thefirmg ham-mer'may execute its full movement,-ev.en though the action'bar locking-member is held the locking position in which it would nor- ;m'ally-block the movement of a member assoc ia-ted with th'efiring hammer. For the purpose of illustration,- the :inventionhas been shown asappliedt o a firearm of the type described in"Patent"908,8$3, granted February '6, 19 06, to John Pedersen', I

I Inthe drawings: I I

" JEigure 1 is an elevation partly in section of-a part of a firearmembodying the present invention, the breechbeing-closed and locked, the hammer cocked, andtheactio'n bQIlOGlKQd. Figure 2 is a section throughzthe receiver 19%. Serial No. 106,811

of the firearm showing the hammer in its forward positionand the action bar is still locked. i

'Figure 3 is a section similar to Figure 2,

showing the action barlock in ineffective po: sition.

Figure 1 is an enlarged detail view of a part of the hammer spring rod constructed according tothe present invention.

Figure 5 is an enlarged. detail showing the carrier latch in engagement with the hammer spring rod.

, 111s firearm lllustrated 1n the drawings comprises a rcce verjll, having a stock 12 suitably secured at its rear end and a barrel 13 secured at its forx'vard end. Thereeeiver contains a breech block 14 formed with a lock: ing shoulder 15 adapted to engage a recoil shoulder 16 in the top of the receiver thereby locking the breech block in breech closing position. The breech block comprises a down- Wardly extending foot 17 adapted to engage a suitably shaped part of an actionbar or slide 18 by means of whichthe breech block is i -moved downwardly to disengage the locking shoulder 15 from the recoil shoulder 16 and is subsequently retracted to openthe breech.-

:ilhe action bar 18 has a bearing inan open ing 19 in the receiver, and 1s provided-with an operating handle or forearm 2.0. In the lirearm illustrated in the drawings, the action slidem of hollow tubular form and also serves as a cartridge containing magazine.

The bottom of the receiver is closed by rigger plate 25 which isfixed to the stock 12,

aid trigger plate serving as a support for a rigger 26 mounted on pivot 27, and also carrying a bearing sleeve 28, upon which are pivotally mounted the firing hainmer EZ-S)v and the member '30, which, in thisvv construction, serves both as an action'bar lockor latch, and

as a'c'arrier for moving the cartridges'one at a time from the tubular magazine action bar 18 nto alignment with thebarrel chamber.

This latch lever member 3.0 is provided with a rearwardlyextending arm 31 which overlies a plunger 32 mounted in a recess in the trigger, and is pressed upwardly into engagement with the arm 31 by coil spring 33. 1 By means oi this spring and plunger, thetriggei' is tensioned forwardly,"and the forward end of the member 30 is pressed downwardly; its movement in this direction being stopped by its a when engaged by a cam face 37, located on; the forward end of the member 30 immediately below the locking face-35.

It will be'seen that when the'gun is cocked, the several parts which have been described occupy. the position shown in Figure 1, the

latch member 'beingrocked by spring 33 so that the locking face 35 is in alignment with the action bar lug 36, and the action bar islocked thereby. By rocking the forward end of latch member 30 upward to bring cam vface37 opposite lug 36 the action bar may be released for rearward movement. At the 7 end ofv the rearward stroke of the action bar lug 36 engages a cam slot 38in the side of member 30, and on the forward stroke of the action bar lifts member 30to transfer a cartridge into alignment with the chamber. The

means for withdrawing latch member30 from I action bar locking position is associated with the hammer actuating devices. These devices comprise a main spring 39 surrounding a main spring rod 40, which is pivoted to the hammer at 41. .The enlarged head 42 ofJthe main spring rod comprises anarc'uate depression '43 near its forward end to providev clearance for'the part of latch member 30 which surrounds its pivot. The main spring rod is bifurcated by a horizontal longitudinal slot 44iextending rearwardly from the center of the depression 43, thus forming a free end or arm 45 for a purpose which will be hereinafter described. i

Inthe'normal operation oft'he gun, when.

thegtrigger is pulled, the'hammer is driven forward by the power supplied by the main spring 39, and as itapproachesits forward her about its pivot to the position'shown in Figure 3, thus releasing the-action .bar, If,

position (Figure 2), the inclined end 46of the arm 45 engages the rearwardlyextending arm 31 of latch member '30, rocking this 1nem-' however, at the time the hammer falls, the action bar-is drawntoo strongly to the rear,

the locking lug 36 will be pressed. so tightly into'engagementlwith thelocking face 35 that .movement of the latch member 30 upon its engagement by the end of arm 45 will be pre- .vented. In this event, arm 45 is deflected upwardly to the position shown in Figure 2 and thusthe main spring'rod and the hammer are permitted to perform the complete firing movement without encountering a resistance of such magnitude; as to appreciably retard their movement and thereby cause any tendency t'o misfire. A forceful blow of the hamremerwis thus insured, even the latch member 30 be held against movement. The arm 45,

latch device is excessive 5. In a firearm, in. combination, an impact member, actuatingmeanstherefor, fa'latch which is sufiiciently rigid to effect the movement of the latch under normal conditions,

is tensioned when forced upwardly to Fig- 'ure'2 position, thus when the action bar is.

subsequently released this arm will return to normalposition arid upon such movement will rock the latch member 30 and withdraw it from efiective position.

It is to be understood that the. foregoing I description andthe drawings merely set forth a typical embodiment of inventions which may take a variety of forms falling within the" scope of the appended claims.

Iclaimi 1- 1. In a firearm of the type having a, firing chamber, breech mechanism closing said firv ing chamber, and operating mechanism for said breech mechanism, the combinat on of a latch normally blocking movement of said operating mechanism, a firing hammer, a

latch'disabling means. associated with said I hammer and comprising a bifurcatedmember, one arm of which is adapted to yield if the resistance to motion of said latch, is excessive.

2. Ina firearm .of the type'having a .fir-

ing chamber, breech mechanism closing said :1

I firing chamber, and operating mechanism for said breechmechanism', the combination of a latch normally'blocking movement of said operating mechanism, a firingrhammer, a bifurcated member havingone arm attached to said hammer and a second armada'pted to n I engage and operate said latch, but to'yield if the resistance of s'aid'latch to movement.

is excessive.

ing chamber, and operating mechanism for saidbreech mechanism, the combination of a latch normallyblocking movement of said operating mechanism, a firing hammer, an

actuating device for said hammer comprising arod ivotedth'ereto, said rod being slotted to provide a free endxadapted to normally withdraw said latchrfrom effective position,

andto yield if the resistanceof said latchto motion-is excessive. I 4; Ina firearm, n combination an impact bifurcated rod, said arm being deflected and 'tensionedaby engagement'with saidlatch device if'the resistance to movement of said device, means normallyefie'ctive on the movemember, actuating, means therefor includinga bifurcated rod, a latch device normally actuated byengagement with one arm of said ment of said impact memberftofwithdraw said lat'chldevice from efi'ectivepositiomsaid .meansincluding a bifurcated-rod, one arm of} which is adapted,on movement of said impact device, to engage'said latch and tolbe deflected. andtensionedif the resistance to movement of said latch is excessive, and, by

3. In a firearm of the type having afiring I chamber, breech mechanism closing said'firits return to normal position, to subsequently withdraw said latch where its resistance to movement is removed.

6. In a firearm of the type comprising a firing chamber, breech mechanism closing said firing chamber, and an action bar for operating said breech mechanism; a look for said action bar, a hammer, a main spring and a bifurcated main spring rod associated with said i hammer, a latch for said action bar normally withdrawn from effective position on the forward movement of said hammer by engagement with one'arm of said bifurcated main spring rod, but adapted to deflect and tension said arm when held by said action bar, and to be subsequentlywithdrawn by the return of said arm to normal position.

CRAWFORD G. LOOMIS. 

